World
World Leaders Sign Landmark Climate Accord at Geneva Summit
In a historic breakthrough, 194 nations agreed to binding carbon-reduction targets that scientists say could limit global warming to 1.5°C by 2050.
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Science
NASA Reveals Bold Plan to Land Astronauts on Mars by 2031
The agency named a six-person crew and unveiled a two-phase mission architecture.
Health
WHO Issues Alert Over Fast-Spreading Respiratory Virus in Southeast Asia
Officials urge calm but say surveillance has been elevated to highest level.
US
New York City Approves $52 Billion Green Transit Overhaul
The plan adds four new subway lines and replaces the entire bus fleet with electric vehicles by 2030.
Science
Archaeologists Discover 3,000-Year-Old Submerged City Off Coast of Greece
Divers found streets, columns and intact pottery in remarkably preserved ruins.
Around the World
World
South China Sea Standoff Deepens After Naval Vessels Clash Near Disputed Island
Beijing and Manila trade accusations as both sides deploy additional warships to the region.
Health
New Immunotherapy Achieves 94% Cancer Remission Rate in Phase III Trial
Researchers call the results "the most promising data we have ever seen" for this class of treatment.
Weather
Record-Shattering Hurricane Season Prompts Emergency Climate Summit
With 22 named storms before October, forecasters say this is the most active Atlantic season ever recorded.